Provided is a stereoscopic image display device and the like with which the issues of a CT-image and pseudoscopic view by the 3D crosstalk can be overcome so that a sense of discomfort is not felt by the observer even when the observing position of the observer is shifted without giving a sense of discomfort by a drastic change in the parallax value, in which an image processing unit includes: a relative position calculating unit which calculates a relative position of a stereoscopic display panel with respect to the measured observing position of the observer; a parallax adjustment amount calculating unit which calculates a parallax adjustment amount suited for stereoscopic image display according to the relative position; and a parallax adjustment processing unit which performs parallax adjustment processing on image data according to the parallax adjustment amount.
Legal claims defining the scope of protection, as filed with the USPTO.
1. A stereoscopic image display device, comprising: a stereoscopic display panel unit which includes: an optical module which distributes a light ray at least into two different viewpoint directions, assuming that the direction of distributing the light ray as a first direction, a stereoscopic viewing space where a stereoscopic image is displayed by projecting a right-eye image to the right eye of an observer and a left-eye image to the left eye of the observer, respectively, a pseudoscopic viewing space where the left-eye image is projected to the right eye and the right-eye image is projected to the left eye, respectively, which is at a position shifted from the stereoscopic viewing space in the first direction, and a 3D-crosstalk viewing space where the right-eye image and the left-eye image are projected to one of or both of the right eye and the left eye, which is between the stereoscopic viewing space and the pseudoscopic viewing space in the first direction; an observer position measuring unit which measures an observing position of the observer; a relative position calculating unit which calculates a relative position of the stereoscopic display panel unit with respect to the observing position of the observer; a device characteristic data saving unit which saves 3D-crosstalk characteristic data containing a display characteristic of the stereoscopic display panel unit for the relative position; an image data saving unit which saves or receives the image data; a parallax adjustment amount calculating unit which calculates a parallax adjustment amount suited for stereoscopic image display according to the relative position from the 3D-crosstalk characteristic data; and a parallax adjustment processing unit which performs parallax adjustment processing on the image data according to the parallax adjustment amount, wherein when it is defined among the 3D crosstalk characteristic data that an area where the 3D crosstalk amount exceeds a prescribed value is a 3D-crosstalk viewing space and an area where the 3D crosstalk amount is equal to or less than the prescribed value is a no-3D-crosstalk viewing space, the parallax adjustment amount of the 3D-crosstalk viewing space is smaller than the parallax adjustment amount of the no-3D-crosstalk viewing space.
2. The stereoscopic image display device as claimed in claim 1 , wherein at least two or more stereoscopic viewing spaces are included between pseudoscopic viewing spaces existing in the first direction, and the 3D-crosstalk viewing space exists not only between the pseudoscopic viewing space and the stereoscopic viewing space but also between the stereoscopic viewing spaces.
3. The stereoscopic image display device as claimed in claim 2 , wherein: the stereoscopic image display device is of N-viewpoints (N is 3 or more); and the parallax adjustment processing unit performs the parallax adjustment processing in the 3D-crosstalk viewing space that is an area between the stereoscopic viewing space and the neighboring stereoscopic viewing space and in the 3D-crosstalk viewing space that is an area changing from the stereoscopic viewing space to the pseudoscopic viewing space according to the relative position and a parallax value of the image data.
4. The stereoscopic image display device as claimed in claim 1 , wherein the relative position is a viewing angle between the observing position of the observer and a display plane of the stereoscopic display panel unit.
5. The stereoscopic image display device as claimed in claim 1 , wherein the prescribed amount of the 3D crosstalk amount is 10%.
6. The stereoscopic image display device as claimed in claim 1 , wherein the parallax adjustment amount calculating unit classifies viewing angle ranges of the 3D-crosstalk viewing space at least into two or more viewing angle ranges by using at least two or more kinds of 3D crosstalk amount threshold values specified by a visual condition of a stereoscopic image, and calculates the parallax adjustment amount by having a various differential coefficient of the parallax adjustment amount with respect to the viewing angles for each of the classified viewing angle ranges.
7. The stereoscopic image display device as claimed in claim 1 , wherein: the stereoscopic image display device is of N-viewpoints (N is 3 or more); and the parallax adjustment processing unit performs the parallax adjustment processing only in the 3D-crosstalk viewing space that is an area changing from the stereoscopic viewing space to the pseudoscopic viewing space.
8. The stereoscopic image display device as claimed in claim 1 , further comprising a parallax change amount allowable value data saving unit which saves a parallax change amount allowable value that is an upper limit value of the parallax change amount with which a sense of discomfort is not felt by a change in the parallax of the stereoscopic image with respect to time, wherein the parallax adjustment amount calculating unit calculates the parallax adjustment amount with respect to the change amount of a viewing angle based on the differential coefficient of the relative position with respect to the time and the parallax change amount allowable value.
9. The stereoscopic image display device as claimed in claim 1 , further comprising a 3D crosstalk image area calculating unit which calculates a 3D crosstalk image area based on the relative position and the 3D-crosstalk characteristic data, wherein the parallax adjustment processing unit performs the parallax adjustment processing on the 3D crosstalk image area among the image data according to the parallax adjustment amount.
10. The stereoscopic image display device as claimed in claim 9 , further comprising: an input operation detecting unit which detects an input operation of the observer; an input operation judging unit which judges the input operation that is detected; and an input operation processing unit which processes the input operation that is detected or judged, wherein the input operation processing unit displays a notification screen for displaying a detection result of the input operation of the observer in an area outside the 3D crosstalk image area.
11. The stereoscopic image display device as claimed in claim 1 , further comprising: an input operation detecting unit which detects an input operation of the observer, the parallax adjustment amount being input by the input operation; an input operation judging unit which judges the input operation that is detected; and an input operation processing unit which processes the input operation that is detected or judged, wherein: the input operation judging unit judges the parallax adjustment amount inputted by the input operation; and the parallax adjustment amount calculating unit calculates a proper parallax adjustment amount by using the parallax adjustment amount that is judged.
12. The stereoscopic image display device as claimed in claim 1 , further comprising a temperature measuring unit which measures environmental temperatures, wherein the parallax adjustment amount calculating unit calculates the parallax adjustment amount suited for stereoscopic image display with respect to viewing angles based on the 3D-crosstalk characteristic data corresponding to a temperature measured by the temperature measuring unit.
13. The stereoscopic image display device as claimed in claim 1 , wherein the parallax adjustment amount calculating unit: classifies, according to the relative position, into a stereoscopic viewing space where a left-eye image is projected to the left eye and a right-eye image is projected to the right eye, a pseudoscopic viewing space where a right-eye image is projected to the left eye and a left-eye image is projected to the right eye, and a 3D-crosstalk viewing space where a right-eye image and a left-eye image are projected to the left eye or a left-eye image and a right-eye image are projected to the right eye; and calculates a smaller parallax value of the image data when the observer moves in the 3D-crosstalk viewing space than that of the image data when the observer moves in the stereoscopic viewing space or the pseudoscopic viewing space.
14. The stereoscopic image display device as claimed in claim 1 , wherein the parallax adjustment amount calculating unit calculates the parallax adjustment amount by having a differential coefficient of the parallax amount with respect to a viewing angle corresponding to the relative position as a finite value according to the change in the relative position.
15. The stereoscopic image display device as claimed in claim 1 , further comprising a parallax adjustment mode switching unit which switches parallax adjustment modes in order to change the parallax adjustment processing of the image data, according to an observing condition including a positional relation between the observer and the stereoscopic display panel unit and a differential coefficient of the positional relation with respect to the time.
16. The stereoscopic image display device as claimed in claim 15 , wherein the parallax adjustment mode switching unit includes a function which limits the differential coefficient of the parallax value with respect to time, when switching the parallax adjustment modes.
17. The stereoscopic image display device as claimed in claim 1 , further comprising an arbitrary viewpoint image generating unit which calculates viewpoint positions of two or more virtual cameras by referring to the relative position calculated by the relative position calculating unit and the parallax adjustment amount calculated by the parallax adjustment amount calculating unit, and displays the arbitrary viewpoint images captured by the virtual cameras.
18. The stereoscopic image display device as claimed in claim 17 , wherein: the stereoscopic image display device is of N-viewpoints (N is 3 or more); and the arbitrary viewpoint image generating unit detects two viewpoint areas according to a relative position from each of viewpoint areas of N-viewpoints projected towards the observer side from the stereoscopic display panel unit by referring to the relative position calculated by the relative position calculating unit and the parallax adjustment amount calculated by the parallax adjustment amount calculating unit, calculates viewpoint positions of virtual cameras of two viewpoints corresponding to the viewpoint areas, and displays the arbitrary viewpoint images captured by the virtual cameras.
19. The stereoscopic image display device as claimed in claim 17 , wherein: the stereoscopic image display device is of N-viewpoints (N is 3 or more); and the arbitrary viewpoint image generating unit calculates viewpoint positions of virtual cameras of N-viewpoints corresponding to each of viewpoint areas of N-viewpoints projected towards an observer side from the stereoscopic display panel unit by referring to the relative position calculated by the relative position calculating unit and the parallax adjustment amount calculated by the parallax adjustment amount calculating unit, and displays the arbitrary viewpoint images captured by the virtual cameras.
20. The stereoscopic image display device as claimed in claim 19 , wherein the viewpoint positions of the virtual cameras of the N-viewpoints are all different viewpoint positions.
21. The stereoscopic image display device as claimed in claim 19 , wherein the viewpoint positions of the virtual cameras of the N-viewpoints are same in an arbitrary range of a viewing angle.
22. The stereoscopic image display device as claimed in claim 17 , wherein: the stereoscopic image display device is of N-viewpoints (N is 3 or more); and the arbitrary viewpoint image generating unit detects a virtual camera which captures an image that is not projected to the observer from the stereoscopic image display device by referring to the relative position calculated by the relative position calculating unit and the parallax adjustment amount calculated by the parallax adjustment amount calculating unit, and non-continuously shifts the viewpoint position of the detected virtual camera at the relative position.
23. A stereoscopic image display device, comprising: a stereoscopic display panel unit which includes: an optical module which distributes a light ray at least into two different viewpoint directions, assuming that the direction of distributing the light ray as a first direction, a stereoscopic viewing space where a stereoscopic image is displayed by projecting a right-eye image to the right eye of an observer and a left-eye image to the left eye of the observer, respectively, a pseudoscopic viewing space where the left-eye image is projected to the right eye and the right-eye image is projected to the left eye, respectively, which is at a position shifted from the stereoscopic viewing space in the first direction, and a 3D-crosstalk viewing space where the right-eye image and the left-eye image are projected to one of or both of the right eye and the left eye, which is between the stereoscopic viewing space and the pseudoscopic viewing space in the first direction; an observer position measuring unit which measures an observing position of the observer; a relative position calculating unit which calculates a relative position of the stereoscopic display panel unit with respect to the observing position of the observer; a device characteristic data saving unit which saves 3D-crosstalk characteristic data containing a display characteristic of the stereoscopic display panel unit for the relative position; an image data saving unit which saves or receives the image data; a parallax adjustment amount calculating unit which calculates a parallax adjustment amount suited for stereoscopic image display according to the relative position from the 3D-crosstalk characteristic data; and a parallax adjustment processing unit which performs parallax adjustment processing on the image data according to the parallax adjustment amount, wherein when it is defined among the 3D crosstalk characteristic data that an area where the 3D crosstalk amount exceeds a prescribed value is a 3D-crosstalk viewing space and an area where the 3D crosstalk amount is equal to or less than the prescribed value is a no-3D-crosstalk viewing space, the parallax adjustment amount of the 3D-crosstalk viewing space is smaller than the parallax adjustment amount of the no-3D-crosstalk viewing space, wherein the stereoscopic image display device further comprises a fixed parallax area identifying unit which identifies an area of equal to or more than a prescribed proportion within the no-3D-crosstalk viewing space, and wherein the parallax adjustment processing unit decreases the parallax value of the image data entirely so that the parallax value of the image data after executing the parallax adjustment processing takes a constant value within the area specified by the fixed parallax area identifying unit.
24. The stereoscopic image display device as claimed in claim 23 , wherein the prescribed proportion within the no-3D-crosstalk viewing space is 50%.
25. A stereoscopic image display device, comprising: a stereoscopic display panel unit which includes an optical module which distributes a light ray at least into two different viewpoint directions, and a stereoscopic viewing space where a stereoscopic image is displayed by projecting images of different viewpoints to both eyes of an observer, respectively; an observer position measuring unit which measures an observing position of the observer; a relative position calculating unit which calculates a relative position of the stereoscopic display panel unit with respect to the observing position of the observer; a device characteristic data saving unit which saves 3D-crosstalk characteristic data containing a display characteristic of the stereoscopic display panel unit for the relative position; an image data saving unit which saves or receives the image data; a parallax adjustment amount calculating unit which calculates a parallax adjustment amount suited for stereoscopic image display according to the relative position from the 3D-crosstalk characteristic data and a parallax value of the image data; and a parallax adjustment processing unit which performs parallax adjustment processing on the image data according to the parallax adjustment amount, wherein when it is defined among the 3D crosstalk characteristic data that an area where the 3D crosstalk amount exceeds a prescribed value is a 3D-crosstalk viewing space and an area where the 3D crosstalk amount is equal to or less than the prescribed value is a no-3D-crosstalk viewing space, the parallax adjustment amount of the 3D-crosstalk viewing space is smaller than the parallax adjustment amount of the no-3D-crosstalk viewing space.
26. The stereoscopic image display device as claimed in claim 25 , wherein the relative position is a viewing angle between the observing position of the observer and a display plane of the stereoscopic display panel unit.
27. The stereoscopic image display device as claimed in claim 25 , further comprising a parallax change amount allowable value data saving unit which saves a parallax change amount allowable value that is an upper limit value of the parallax change amount with which a sense of discomfort is not felt by a change in the parallax of the stereoscopic image with respect to time, wherein the parallax adjustment amount calculating unit calculates the parallax adjustment amount with respect to the change amount of the viewing angle based on the differential coefficient of the relative position with respect to the time and the parallax change amount allowable value.
28. The stereoscopic image display device as claimed in claim 25 , further comprising: an input operation detecting unit which detects an input operation of the observer, the parallax adjustment amount being input by the input operation; an input operation judging unit which judges the input operation that is detected; and an input operation processing unit which processes the input operation that is detected or judged, wherein: the input operation judging unit judges the parallax adjustment amount inputted by the input operation; and the parallax adjustment amount calculating unit calculates a proper parallax adjustment amount by using the parallax adjustment amount that is judged.
29. The stereoscopic image display device as claimed in claim 25 , further comprising a temperature measuring unit which measures environmental temperatures, wherein the parallax adjustment amount calculating unit calculates the parallax adjustment amount suited for stereoscopic image display with respect to viewing angles by corresponding to a temperature measured by the temperature measuring unit.
30. The stereoscopic image display device as claimed in claim 25 , wherein the parallax adjustment amount calculating unit calculates the parallax adjustment amount by having a differential coefficient of the parallax amount with respect to the viewing angle corresponding to the relative position as a finite value according to the change in the relative position.
31. A stereoscopic image display device, comprising: a stereoscopic display panel unit which includes: an optical module which distributes a light ray at least into two different viewpoint directions, assuming that the direction of distributing the light ray as a first direction, a stereoscopic viewing space where a stereoscopic image is displayed by projecting a right-eye image to the right eye of an observer and a left-eye image to the left eye of the observer, respectively, a pseudoscopic viewing space where the left-eye image is projected to the right eye and the right-eye image is projected to the left eye, respectively, which is at a position shifted from the stereoscopic viewing space in the first direction, and a 3D-crosstalk viewing space where the right-eye image and the left-eye image are projected to one of or both of the right eye and the left eye, which is between the stereoscopic viewing space and the pseudoscopic viewing space in the first direction; an observer position measuring unit which measures an observing position of the observer; a relative position calculating unit which calculates a relative position of the stereoscopic display panel unit with respect to the observing position of the observer; a device characteristic data saving unit which saves 3D-crosstalk characteristic data containing a display characteristic of the stereoscopic display panel unit for the relative position; an image data saving unit which saves or receives the image data; a parallax adjustment amount calculating unit which calculates a parallax adjustment amount suited for stereoscopic image display according to the relative position from the 3D-crosstalk characteristic data; a parallax adjustment processing unit which performs parallax adjustment processing on the image data according to the parallax adjustment amount; and an arbitrary viewpoint image generating unit which calculates viewpoint positions of two or more virtual cameras by referring to the relative position calculated by the relative position calculating unit and the parallax adjustment amount calculated by the parallax adjustment amount calculating unit, and displays the arbitrary viewpoint images captured by the virtual cameras, wherein when it is defined among the 3D crosstalk characteristic data that an area where the 3D crosstalk amount exceeds a prescribed value is a 3D-crosstalk viewing space and an area where the 3D crosstalk amount is equal to or less than the prescribed value is a no-3D-crosstalk viewing space, the parallax adjustment amount of the 3D-crosstalk viewing space is smaller than the parallax adjustment amount of the no-3D-crosstalk viewing space, and wherein the arbitrary viewpoint image generating unit: identifies a range of arbitrary viewpoint positions between the viewpoint positions by referring to the viewpoint positions from a plurality of pieces of image data saved in the image data saving unit; and repeatedly displays the arbitrary viewpoint images between the viewpoint positions according to the relative position calculated by the relative position calculating unit.
32. The stereoscopic image display device as claimed in claim 31 , wherein: the image data saved in the image data saving unit are the image data of two viewpoints in total, which are right-eye image data and left-eye image data; the arbitrary viewpoint image generating unit: identifies a range of arbitrary viewpoint positions between the viewpoint positions of the right-eye image and left-eye image by referring to the right-eye image data and the left-eye image data: and repeatedly displays the arbitrary viewpoint images between the viewpoint positions of the right-eye image and left-eye image, according to the relative position calculated by the relative position calculating unit.
33. The stereoscopic image display device as claimed in claim 32 , wherein: the arbitrary viewpoint image generating unit repeatedly displays the arbitrary viewpoint images within the stereoscopic viewing space of the stereoscopic display panel unit, according to the relative position calculated by the relative position calculating unit.
34. An image processing device which outputs an image data to a stereoscopic display panel unit which includes: an optical module which distributes a light ray at least into two different viewpoint directions; assuming that the direction of distributing the light ray as a first direction, a stereoscopic viewing space where a stereoscopic image is displayed by projecting a right-eye image to the right eye of an observer and a left-eye image to the left eye of the observer, respectively; a pseudoscopic viewing space where the left-eye image is projected to the right eye and the right-eye image is projected to the left eye, respectively, which is at a position shifted from the stereoscopic viewing space in the first direction; and a 3D-crosstalk viewing space where the right-eye image and the left-eye image are projected to one of or both of the right eye and the left eye, which is between the stereoscopic viewing space and the pseudoscopic viewing space in the first direction, the image processing device comprising: an observer position measuring unit which measures the observing position of the observer; a relative position calculating unit which calculates a relative position of the stereoscopic display panel unit with respect to a measured observing position of the observer; a device characteristic data saving unit which saves 3D-crosstalk characteristic data containing a display characteristic of the stereoscopic display panel unit for the relative position; a parallax adjustment amount calculating unit which calculates a parallax adjustment amount suited for stereoscopic image display according to the relative position from the 3D-crosstalk characteristic data; a parallax adjustment processing unit which performs parallax adjustment processing on image data according to the parallax adjustment amount; an image data receiving unit which receives the image data before the parallax adjustment processing is performed; and an image data transmitting unit which outputs the image data on which the parallax adjustment processing is performed, wherein when it is defined among the 3D crosstalk characteristic data that an area where the 3D crosstalk amount exceeds a prescribed value is a 3D-crosstalk viewing space and an area where the 3D crosstalk amount is equal to or less than the prescribed value is a no-3D-crosstalk viewing space, the parallax adjustment amount of the 3D-crosstalk viewing space is smaller than the parallax adjustment amount of the no-3D-crosstalk viewing space.
35. A stereoscopic image processing method using a stereoscopic display panel unit which includes: an optical module which distributes a light ray at least into two different viewpoint directions; assuming that the direction of distributing the light ray as a first direction, a stereoscopic viewing space where a stereoscopic image is displayed by projecting a right-eye image to the right eye of an observer and a left-eye image to the left eye of the observer, respectively; a pseudoscopic viewing space where the left-eye image is projected to the right eye and the right-eye image is projected to the left eye, respectively, which is at a position shifted from the stereoscopic viewing space in the first direction; and a 3D-crosstalk viewing space where the right-eye image and the left-eye image are projected to one of or both of the right eye and the left eye, which is between the stereoscopic viewing space and the pseudoscopic viewing space in the first direction, the method comprising: measuring an observing position of the observer; calculating a relative position of the stereoscopic display panel unit with respect to the observing position of the observer; acquiring device characteristic data including a display characteristic of the stereoscopic display panel unit with respect to the relative position; calculating a parallax adjustment amount suited for stereoscopic image display for the relative position from the 3D-crosstalk characteristic data; performing parallax adjustment processing on the image data according to the parallax adjustment amount; and outputting the image data on which the parallax adjustment processing is performed to the stereoscopic display panel unit, wherein when it is defined among the 3D crosstalk characteristic data that an area where the 3D crosstalk amount exceeds a prescribed value is a 3D-crosstalk viewing space and an area where the 3D crosstalk amount is equal to or less than the prescribed value is a no-3D-crosstalk viewing space, the parallax adjustment amount of the 3D-crosstalk viewing space is smaller than the parallax adjustment amount of the no-3D-crosstalk viewing space.
36. The stereoscopic image processing method as claimed in claim 35 , comprising: calculating a 3D crosstalk image area based on the relative position and the 3D-crosstalk characteristic data; and performing the parallax adjustment processing on the 3D crosstalk image area among the image data according to the parallax adjustment amount.
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July 31, 2013
July 19, 2016
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